Axial-vector (spin) excitation of127I by inelastic scattering of dark matter (DM) was studied to search for spin-coupled DM. The inelastic process from127I has the advantages of a large cross-section, a large scintillation output and of a known nuclear matrix element. Stringent limits by direct measurements were obtained on the purely spin-coupled DM candidates. © 1993.
Ejiri, H., Fushimi, K., & Ohsumi, H. (1993). Search for spin-coupled dark matter by studying the axial-vector excitation of nuclei. Physics Letters B, 317(1–2), 14–18. https://doi.org/10.1016/0370-2693(93)91562-2